Excessive Heat — Apple and Lucerne Valleys, California

2021-10-28 · Apple and Lucerne Valleys, California

Event narrative

Warm temperatures occurred with many highs in the low 90s, including Fullerton ASOS, which hit 93 degrees.

Wider weather episode

A surface area of high pressure settled over the Great Basin, producing Santa Ana winds and a shallow marine layer with warm weather. This lead to gusty winds in the mountains and foothills with areas of fog near the coast.

Source: NOAA Storm Events Database, event_id 986849. Narrative written by the NWS forecast office that issued the report.